 Okay, let's do this one. So how many grams of solute would be used to prepare the following solution? 1.5 liters So the volume of the solution 1.5 liters of 0.250 molar glucose solution. So the concentration we'll just say concentration Or we'll do Zero molar, right? But what does molar really mean? Moles, moles per one liter, okay So The polarity of glucose we know and we know the volume of the solution So you think we could figure out the grams from this stuff? Probably right you guys could you guys figure it out already? Play yourself Okay, so how will we figure out instead of the molarity of glucose the mass of glucose? So we know that, right? We know the number of moles of glucose per liter solution And we know the volume of the solution So does that give us the mass of glucose? Gives us the mole. So what do we what? Conversion factor do we need to use? The molar mass, right? Why? Because that converts between moles and grams, right? So we're gonna put one mole on the bottom one mole glucose And Well, let's figure out what the molar mass of glucose is. So 12.01 times 6 plus 12 times 1.008 plus 6 times 16 Mass of glucose we want now? Will that give it to us? So now what you've got to do is take 180.156 multiply that by 1.5 and multiply that by 0.250 and you get 67.6 grams of glucose. Any questions? And all about ten other ones before that one. Question?